National Semiconductor ADC0808

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part number	ADC0808
octopart part number	355849048639
manufacturer	National Semiconductor
lead free	???
prefix	U
Description	ADC0808
imported from octopart	yes
package
RoHS	???

pin 21 description	data bus (MSB)
pin 2 description	analog input 4
Minimum START pulse width	100ns
pin 13 description	ground
pin 20 description	data bus
pin 4 description	analog input 6
pin 7 description	end of conversion (active high)
Conversion time (640 kHz clock frequency)	100µs
pin 6 description	start conversion (active high)
pin 19 description	data bus
pin 16 description	negative voltage reference
pin 25 description	channel select (LSB)
pin 27 description	analog channel 1
pin 3 description	analog input 5
pin 5 description	analog input 7
Clock frequency	10 (min) 640 (typical) 1280 (max) kHz
pin 18 description	data bus
pin 24 description	channel select
pin 17 description	data bus (LSB)
pin 14 description	data bus
pin 26 description	analog channel 0
pin 15 description	data bus
Total unadjusted error	±1/2 (ADC0808) ±1 (ADC0809)LSB
Analog mux delay time from ALE	1µs
Supply voltage VCC	5V
Analog input voltage range	GND-0.10 (min) Vcc+0.10 (max) V
pin 23 description	channel select (MSB)
pin 10 description	clock input
Input resistance, VREF(+) to VREF(-)	2.5kΩ
pin 28 description	analog channel 2
pin 12 description	positive voltage reference
pin 8 description	data bus
pin 9 description	data output enable
Minimum ALE pulse width	100ns
pin 11 description	supply voltage
pin 1 description	analog input 3
pin 22 description	address latch enable (positive-edge trigger)

This part isn't used in any public projects. Bit of a shame really.